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Topic: Epididymis

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Vas deferens

Testicle

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Epididymitis

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	SIU SOM Histology ERG
		Sperm move from the seminiferous tubules within each testis, through the rete testis and the efferent ductules, to the epididymis, and hence to the vas deferens.
		The epididymis is the initial portion of the duct which eventually continues as the vas deferens.
		However, in the epididymis the tubules are larger, less numerous, and less closely packed; the tubule epithelium lacks germ cells; and the stroma lacks dense fibrous connective tissue septa and conspicuous acidophilic interstitial (Leydig) cells.
	www.siumed.edu /~dking2/erg/epidid.htm (0 words)

	Epididymis definition - Medical Dictionary definitions of popular medical terms
		Epididymis definition - Medical Dictionary definitions of popular medical terms
		Epididymis: A structure within the scrotum attached to the backside of the testis.
		The epididymis is a coiled segment of the spermatic ducts that serves to store, mature and transport spermatozoa between the testis and the vas (the vas deferens).
	www.medterms.com /script/main/art.asp?articlekey=3280 (210 words)

	Gray, Henry. 1918. Anatomy of the Human Body. Page 1242
		The epididymis consists of a central portion or body; an upper enlarged extremity, the head (globus major); and a lower pointed extremity, the tail (globus minor), which is continuous with the ductus deferens, the duct of the testis.
		On the head of the epididymis is a second small stalked appendage (sometimes duplicated); it is named the appendix of the epididymis (pedunculated hydatid), and is usually regarded as a detached efferent duct.
		From the posterior border of the gland it is reflected on to the internal surface of the scrotum.
	www.bartleby.com /107/pages/page1242.html (610 words)

	Chapter 34: Male genitalia
		A recess of the tunica vaginalis, termed the sinus of the epididymis, extends between the body of the epididymis and the lateral surface of the testis (fig.
		The efferent ductules of the testis form lobules (or cones) in the head of the epididymis, and these drain into the duct of the epididymis, which descends through the body and tail of the organ and becomes the ductus deferens.
		Small embryonic remnants may be found: the appendix testis at the superior end and the appendix of the epididymis on the head of that organ.
	www.dartmouth.edu /~humananatomy/part_6/chapter_34.html (1911 words)

	Epididymis
		The epididymis is part of the human male reproductive system and is present in all mammals.
		Sperm entering the caput epididymis are incomplete - they lack the ability to swim forward (motility) and to fertilize an egg.
		During ejaculation, sperm flow from the lower portion of the epididymis (which functions as a storage reservoir).
	www.xasa.com /wiki/en/wikipedia/e/ep/epididymis.html (205 words)

	Male Reproductive System and Toxicology (Site not responding. Last check: )
		That is, as the cells mature the epididymis absorbs components from the fluid including secretions from the Sertoli cells (e.g., androgen binding protein), thereby increasing the concentration of spermatozoa.
		While the epididymis is the principal storage reservoir for sperm until ejaculation, about 30% of the sperm in an ejaculate have been stored in the vas deferens.
		For example, the epididymis is represented by GPC, the seminal vesicles by fructose, and the prostate gland by zinc.
	www.ilo.org /encyclopaedia/?print&nd=857400165 (2809 words)

	Medical Dictionary: Epididymis - WrongDiagnosis.com - WrongDiagnosis.com
		Epididymis : convoluted tubule connecting the vas efferens, that comes from the seminiferous tubules of the mammalian testis, to the vas deferens; maturation and storage of sperm occur in the epididymis.
		Epididymis : The convoluted cordlike structure attached to the posterior of the testis.
		Epididymis (organ): Sperm is collected from its production in the testes, where it is conveyed into the epididymis, and then via the vas deferens and seminal vesicle, and eventually out the urethra during ejaculation.
	www.wrongdiagnosis.com /medical/epididymis_printer.htm (291 words)

	Testicals Overview
		An infection of the epididymis is often associated with an infection of the prostate.
		Because of an infection of the epididymis the maturation of the young sperm cells may be hampered, which leads to a loss of quality and 'effectiveness' of the semen, although a normal number of sperm cells exist.
		Treatment of an infection of the epididymis depends of course on the cause, i.e.
	www.drrajmd.com /conditions/testicles/overview.htm (3920 words)

	Overexpression of VEGF in Testis and Epididymis Causes Infertility in Transgenic Mice: Evidence for Nonendothelial ...
		of the epididymis, and the epithelium of the prostate and seminal
		MMTV LTR-driven VEGF overexpression in the testis and epididymis.
		Expression of the VEGF transgene mRNA in the epididymis and testis.
	www.jcb.org /cgi/content/full/143/6/1705 (4958 words)

	Handbook of Andrology
		For a number of years, the epididymis was considered a holding tube for the spermatozoa; the epididymis did not influence the process of sperm maturation, but was a place where spermatozoa aged.
		Histologically the epididymis is composed of several cell types including principal, basal, apical, halo, clear, and narrow cells, each of which vary in number and size along the epididymal duct.
		The principal cells in the more proximal regions of the epididymis tend to be very tall resulting in a duct with a small luminal diameter whereas, in the distal regions, the principal cells are low columnar cells and the luminal diameter much larger (Fig.
	www.andrologysociety.com /resources/handbook/ch.7.asp (1088 words)

	eMedicine - Torsion of the Appendices and Epididymis : Article by Jason S Chang, MD
		Synonyms and related keywords: acute scrotum, appendix epididymis, appendix of epididymidis, pedunculated hydatid, appendix testis, nonpedunculated hydatid, ovarium masculinum, sessile hydatid, torsion of appendices, torsion of epididymis, testicular torsion
		Two such appendages are the appendix testis, a remnant of the paramesonephric (müllerian) duct, and the appendix epididymis, a remnant of the mesonephric (wolffian) duct.
		The appendix epididymis is present in 23% of testes and usually projects from the head of the epididymis, but its location may vary.
	www.emedicine.com /emerg/topic595.htm (2165 words)

	Olympus Microscopy Resource Center: Anatomy of the Microscope - Brightfield Microscopy Digital Image Gallery - ...
		The epididymis, which receives a constant supply of blood from a branch of the testicular artery and is divided into three basic regions, is believed to function in multiple ways.
		The largest part of the epididymis, known as the head, is located atop the testis, while the smallest part, commonly called the tail, is located where the epididymis separates from the gland.
		The various parts of the epididymis may also be involved in the removal of excess fluid surrounding sperm, but the evidence for this function of the reproductive structure is not conclusive.
	www.olympusmicro.com /primer/anatomy/brightfieldgallery/epididymis20xsmall.html (291 words)

	BioMed Central \| Full text \| Systematic identification and integrative analysis of novel genes expressed specifically ...
		The mammalian epididymis is a segmented organ comprised of a single highly convoluted tubule divided into four regions: the initial segment, caput, corpus, and cauda regions.
		For instance, male mice lacking the protease C inhibitor Serpina 5, which is usually present at high concentrations in the male reproductive tract, are infertile, apparently owing to abnormal spermatogenesis and changes in the epididymal duct [41].
		Total RNA was isolated from various tissues, the four regions of the epididymis, and of mice of different ages, and subsequently, cDNA was synthesized by random hexamer and oligo(dT) priming using Omniscript reverse transcriptase (Qiagen).
	www.biomedcentral.com /1471-2164/7/314 (6125 words)

	Male Reproductive System
		The epididymis is a set of coiled tubes (one for each testicle) that connects to the vas deferens.
		The epididymis and the testicles hang in a pouch-like structure outside the pelvis called the scrotum.
		Epididymitis is inflammation of the epididymis, the coiled tubes that connect the testes with the vas deferens.
	www.kidshealth.org /parent/general/body_basics/male_reproductive.html (2132 words)

	Handbook of Andrology
		The epididymis remains in close contact with the testis and descends with the testis into the scrotum.
		It is known that the epididymis secretes proteins that become part of the surface architecture of the mature spermatozoa and presumably are important in post-ejaculatory function of the spermatozoa.
		In its course the vas deferens ascends from the scrotum, with the vessels that vascularize the testis and epididymis, through the inguinal canal, over the pubic ramus, over the superior lateral aspect of the bladder medial to the ureter, and enters the posterior superior aspect of the prostate, just distal to the seminal vesicle (Fig.
	www.andrologysociety.com /resources/handbook/ch.1.asp (1727 words)

	Vasectomy Reversal
		In the epididymis, white blood cells in the normal testicular circulation ingest and recycle the trapped sperm.
		Whatever the explanation for the obstruction in the epididymis (scarring or blowout), its likelihood is roughly proportional to the number of years that have gone by since the vasectomy.
		A microscope must be used, the connection between epididymis and vas (VE) is often not as strong as the connection between vas and vas (VV), and the success rate of VE is not as high as the success rate of VV.
	www.vasweb.com /reversal.htm (2005 words)

	Steiner Education Group, Massage, Skincare and Natural Health Education - Spermatocele
		Spermatocele is a retention cyst of a tubule of the rete testis or the head of the epididymis.
		Spermatoceles are usually found at the head of the epididymis, adjacent or posterior to the superior pole of the testicle.
		Acute inflammatory processes involving the epididymis or testicle such as epididymitis, orchitis, or testicular torsion, are associated with a high degree of pain and should not be confused with spermatocele.
	www.vasom.com /global/story.asp?s=1230181 (482 words)

	Harry Fisch, MD ~
		If a blockage has occurred in the epididymis, merely connecting the two cut ends of the vas deferens (as is done in a vasovasostomy) will not solve the problem.
		In the past, if the epididymis was blocked or a large segment of the vas deferens was removed during the vasectomy, a vasectomy reversal procedure was considered to be too complicated and was unlikely to be successful.
		by connecting the vas deferens to the epididymis to bypass obstruction in the epididymis.
	cpmcnet.columbia.edu /dept/urology/fisch/vasectomyreversal.htm (5046 words)

	Spermatocele - Symptoms, Treatment and Prevention
		Spermatocele is a retention cyst of a tubule of the rete testis or the head of the epididymis.
		Spermatoceles are usually found at the head of the epididymis, adjacent or posterior to the superior pole of the testicle.
		Acute inflammatory processes involving the epididymis or testicle such as epididymitis, orchitis, or testicular torsion, are associated with a high degree of pain and should not be confused with spermatocele.
	www.healthscout.com /ency/23/407/main.html (534 words)

	Tumors of the Epididymis, Paratesticualr Tissues, & Spermatic Cord -Genital Tumors
		Tumors of the Epididymis, Paratesticualr Tissues, and Spermatic Cord
		Adenomatoid tumors of the epididymis are the most common and typically occur in the third and fourth decade of life.
		Cystadenomas are benign lesions of the epididymis that are bilateral in 30% of cases and are frequently seen in association with von Hippel-Lindau disease.
	www.health.am /cr/more/paratesticualr-tissues-spermatic-cord (476 words)

	UrologyHealth.org - Adult Conditions - Inflammation and Infection - Epididymitis and Orchitis
		Epididymo-orchitis is the sudden inflammation of both the epididymis and the testicle.
		In most cases of acute orchitis, the testicle is inflamed due to the spread of a bacterial infection from the epididymis, and therefore "epididymo-orchitits" is the correct term.
		Acute epididymo-orchitis is usually a primary bacterial or tuberculous infection of the epididymis that has spread to the testicle to involve both structures.
	www.urologyhealth.org /adult/index.cfm?cat=07&topic=490 (3119 words)

	Nikon MicroscopyU: Fluorescence Microscopy Digital Image Gallery - Rat Epididymis Tissue Sections
		Three basic sections of the epididymis are generally identified: the caput (head), corpus (body), and cauda (tail).
		The diameter of the epididymis increases as it proceeds from the caput to the cauda region.
		Labeling Epididymis Tissue with Fluorescent Probes Conjugated to Phallotoxins and Lectins - Inflammation of one or both of the epididymides, known as epididymitis, may occur due to an infection of the bladder or urethra that spreads or due to various noninfectious causes, such as the use of certain medications.
	www.microscopyu.com /galleries/fluorescence/ratepididymis/index.html (471 words)

	SurfWax: News, Reviews and Articles On Epididymis
		A venereal disease of rams, epididymitis is an inflammation of the epididymis, the tubular portion of a ram's reproductive system that collects sperm and stores it for transport.
		This includes the testicles, the epididymis, a structure behind the testicle, the vas deferens, a tube that takes the sperm behind the bladder to the prostate, and a gland called the seminal vesicle.
		The investigation of the role of the novel epididymis-specific gene, Bin1b, is a collaborative project of the Epithelial Cell Biology Research Center of the Chinese University of Hong Kong with the Shanghai Institute of Biochemistry and Cell Biology of Chinese Academy of Sciences...
	news.surfwax.com /anatomy/files/Epididymis_anatomy.html (874 words)

	testicular problems
		The epididymis is a slender, convoluted structure lying on the backside of each testicle.
		Orchitis is an inflammation of the testicles resulting from infection, usually transmitted from the epididymis.
		In young prepubertal boys and in men 35 and older, epididymis is often caused by coliform bacteria, a germ normally found in the intestines.
	cms.clevelandclinic.org /urology/body.cfm?id=96 (793 words)

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